<template>
  <div>
       <!-- 面包屑导航栏 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item><a href="/">数据统计</a></el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card>
        <div id="main" style="width: 800px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
import echarts from 'echarts'
import _ from 'lodash'
export default {
     data() {
         return {
             //需要合并的数据
          options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
         }
     },
    async mounted () {
         //初始化
          var myChart = echarts.init(document.getElementById('main'));
          //准备数据
        const {data:res} = await this.$http.get('reports/type/1')
        if(res.meta.status !== 200) return this.$message.error('获取图形数据失败')
        //将两个对象进行合并
       const  result =   _.merge(res.data, this.options)
      //展示数据
         myChart.setOption(result);
     }
}
</script>

<style>

</style>